Humidifier



FIG. 1 is a front left side perspective view of the humidifier;

FIG. 2 is a front right side perspective view of the humidifier of FIG. 1;

FIG. 3 is a rear left side perspective view of the humidifier of FIG. 1;

FIG. 4 is a left side elevational view of the humidifier of FIG. 1;

FIG. 5 is a right side elevational view of the humidifier of FIG. 1;

FIG. 6 is a front elevational view of the humidifier of FIG. 1;

FIG. 7 is a rear elevational view of the humidifier of FIG. 1;

FIG. 8 is a top plan view of the humidifier of FIG. 1; and,

FIG. 9 is a bottom plan view of the humidifier of FIG. 1.

The broken line showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a humidifier, as shown and described. 